Acceleration Vector From Position
The position of a particle at time t is described by the vector-valued function r(t) = <t^2 - 4t, 3t^3 + 2t>. Find the acceleration vector, a(t), for the particle.
A
<2, 18t>
B
<2t + 4, 9t - 2>
C
<2t - 4, 9t^2 + 2>
D
<18t, 2>
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